４
Fig. 3.1 Change region of the voltage and frequency
3.5 Electric Wiring
1) Fit the piping and inlet filter before use.
2) Ensure that a switch with internal breaker is installed between the pump terminal
block and the power supply.
3) Modification to pump wiring is required. Connect the power cable to the pump terminal
block, install the switch between the terminal block and the power supply, and insert
the power cable plug into regulation voltage socket (see Fig.3.2 Wiring Diagram).
Note: Use power supply cable with a cross-section of 1.25 mm2.
Pump and motor
Viewed from left side of terminal block
U V W E
○ ○ ○ ○
○ ○ ○ ○
R S T Earth
3-phase power supply
Fig.3.2 Wiring Diagram
4) Turn the switch ON and check for suction.
5) When suction is confirmed, switch power OFF to stop the pump.
